Gas-absorbing apparatus



Patented Nov. I8, 1924,

VIGGO E. HANSON, 0F CASPER, WYOMING, ASSIGNOR TO STANDARD OIL CDMPANY, I

OF WHITING, INDIANA, A CORPORATION OF INDIANA.

GAS-ABSORBING APPARATUS.

aAppflicatioufiled August 30, 1920. Serial No. 407,006.

To all whom it may concern:

I 3e it known that I, Vroeo E. HANSON, a citizen of the United States, residing at Casper, in the county of Natrona and State of Wyoming, have invented new and useful Improvements in Gas-Absorbing Apparatus, of which the following is a specification.

This invention relates to an apparatus wherein a liquid is adapted to absorb a gas. In the'refining of oil, gases are formed in each still which are carried over beyond the -.condenser. Such gases are of value as when contained in products of the refining process, for instance liquid naptha, and it is in this connection that the present invention is primarily used. It is particularly aimed to providea novel and eflicient means wherein such gases may be absorbed by the liquid naptha aside from enabling the admixture of a liquid and a gas generally to ly carried out.

Another object is to provide a construction having an upstanding row of battles to facilitate flow of the naptha or liquid for absorbing contact with the gases and to equip the baflles at their apices with overflow cups one of which receives the naptha from the source of supply and all of which serve to retard and insure its flow over the baflies.

A further object is to provide such an apparatus wherein the baflles in a downward direction progressively increase in angularity with respect to the horizontal to compensate for changes in specific gravity of the naptha or absorbent so as to avoid falling through as contrasted with flowing over the bafies.

In the accompanying drawings illustrat-' ing an operative embodiment of the invention:

Figure 1 is a vertical substantially diametric section of the apparatus;

Figure 2 is a plan view thereof and Figure 3 is a cross sectional view taken on the line 33 of Figure 1 looking in the direction of the arrows.

Referring specifically to the drawings, 1 designates a preferably cylindrical'casing which is closed except for a naptha inlet means 2 entering through its top wall, a naptha outlet means 3 fastened to its bottom wall, a gas inlet means 5 secured to its side wall adjacent its bottom, and a gas outlet 6 secured to the side wall adjacent the top and on a-line diametrically opposite to said inlet means 5. A receptacle 4 is disposed within and at the bottom of casing 1 in communication with said outlet means 3.

A vertical row of baflies or screens 7 is disposed in casing 1. Each bafile preferably consists of a pair of substantially frustoconical, respectively upper and lower sections 7* and 7 ofvreticulate material, usually screen wire, arranged with their bases in contact and at such bases being supported by and resting on or secured to ledge elements 1 fastened to and within casing 1. The angles or hypotenuses 0fthe screens of the respective baflles progressively increase in a downward direction relative to the horizontal. v

Said screens or sections 7 at their frustrums have imperforate centrally and axially disposed cups 9 suitably fastened thereto. These cups are preferably of light metal, depend into the section 7 and have their marginal edges in the planes of the- 'frustrums. Said cups further have conical inner surfaces which insure overflow or distributionof the absorbent evenly therefrom onto the screens 7}.

The screens ortsections 7" have centrally located or frustrum openings 8 in axially alignment with the cups 9 and the inlet means 2. The latter depends below the top close to and discharging into the uppermost cup 9. The lowermost opening 8 discharges into receptacle 4.

In using the apparatus, b way of example, naptha or other liquid absorbent is supplied to the casing through the inlet 2 into the uppermost cup 9 and overflows the same so as to travel evenly over its upper edge onto the vuppermost baffle 7 first at its section 7 in a downward and outward direction and .thence. onto its section 7* in an inward and downward direction to its opening. 8. The absorbent passes from the opening 8 into the cup 9 beneath it and in this manner progressively in a general downward direction, flows over the baffles 7 and overflows the various cups 9. From the lowermost baflle 7, the absorbent drains into receptacle 4 from which it passes to a storage tank or means for immediate use, as preferred. As the naptha descends. it is met by ascending gases such as are formed in the stills during the refining of oil and carried over beyond the condenser as previously referred to. Said gases enter at 5 and as they ascend in casing 1, they are baffled by the elements 7 to insure intimate contact thereof with the flowing napthaf which absorbs most of such gases. The un-' absorbed gases escape through outlet 6. The naptha or absorbent becomesdighter as it passes downwardly and progressively over baflies 7 due to the content of the gases absorbed by it and hence the increasing inclination of the baflies 7 progressively in a downward direction with respect to the horizontal is important, since the same is proportioned to the variation in specific gravity of the absorbent so as to prevent the latter from falling through the screens or baffles instead of flowing thereover. It also enables the screens or baflles to be compactly disposed or arranged in minimum space.

I claim 1. An absorber having an upstanding row of reticulate bafiies, with inclined surfaces disposed for flow of absorbent thereover, the angularity of such surfaces progressively increasing in a downward direction with respect to the horizontal, each bafile having an imperforate absorbent-overflow cup disposed at the uppermost portion thereof, and said cups being arranged for engagement by the absorbent successively in a downward direction.

2. An absorber having an upstanding row of baffles provided with inclined baflling surfaces for flow of the absorbent thereover, and the angularity of said surfaces in a downward direction progressively increasing with respect to the horizontal.

3. An absorber having an upstanding row of battles provided with inclined baffling surfaces for flow of the absorbent thereover, the angularity of said bafies in a downward direction progressively increasing with respect to the horizontal, each bafle adjacent the top thereof having a cup for reception and overflow of the absorbent, an absorbentinlet means arranged to discharge into the uppermost cup, and each bafile above the lowermost one being arranged for passage of the absorbent therefrom into the cup of the next lower bafile.

4. An absorber having an upstanding row of battles, a casing within which said battles are arranged, each baffle consisting of a pair of conical sections of reticulate material arranged with their axes in alignment and their bases in a common plane, means within the casing engaging said baffles at their marginal edges to support the same, the upper section of each pair having an interiorly conical cup arranged to receive absorbent and for overflow of the same at a frustrum of the section carrying it, the angularity of said baffles in a downward direction progressively increasing with respect to the Ell horizontal, an absorbent-inlet means arranged to discharge into the uppermost cup, said battles and their cups being adapted for engagement by the absorbent successively in a downward direction, outletmeans for the absorbent adjacent the base of the casing, inlet means for material to be absorbed adjacent the base of the casing, and outlet means for the unabsorbed portion of the last mentioned material located adjacent the top of the casing.

In testimony whereof I ,afiix my signature.

VllGGU 1E. HANSON. 

